Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes.
| NOTICE |
|---|
|
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products. Dispose of all fluids according to local regulations and mandates. |
- Open the access doors that are located behind the cab. Rotate shut off valves (1) for the suction lines that are on the bottom of the hydraulic oil tank 90 degrees into the closed position, as shown. This will keep the hydraulic oil from draining out of the hydraulic oil tank when the suction tubes are removed later in the procedure.
Show/hide table
Illustration 2 g01457197 Show/hide table
Illustration 3 g01457199 - Remove bolt (2) and raise platform (3). Install pin (4) to hold platform (3) in place.
Show/hide table
Illustration 4 g01624169 - Remove clamp assemblies (5) and remove clamp assemblies (7).
- Remove tube assembly (8).
- Remove bracket assembly (6), which supports tube assembly (8).
Show/hide table
Illustration 5 g01624370 Note: The auxiliary drive shaft may need to be removed to access the bottom of the piston pump. Refer to Disassembly and Assembly, "Drive Shaft (Auxiliary) - Remove and Install".The rear drive shaft may need to be removed to access the bottom of the piston pump. Refer to Disassembly and Assembly, "Drive Shaft (Rear) - Remove".
- Disconnect hose assemblies (9), (10), and (11).
Show/hide table
Illustration 6 g01624379 - Disconnect hose assemblies (13), (14), and (15).
- Disconnect harness assemblies (12) that connect to the two coil assemblies (not shown).
Show/hide table
Illustration 7 g01624958 - Attach a suitable lifting device to piston pump assembly (17). The weight of piston pump assembly (17) is approximately
250 kg (550 lb) . - Remove bolts (16) and remove piston pump assembly (17).
Show/hide table
Illustration 8 g01625253 - Remove bolts (19) and separate front piston pump (18) from rear piston pump (21).
- Remove O-rings (20) and (22).
| |
| Illustration 1 | g01457201 |
